ASN Wikibase Occurrence # 367168
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Date: | Thursday 12 April 1990 |
Time: | 01:45 LT |
Type: | Bell 47G-2 |
Owner/operator: | Private |
Registration: | N4779U |
MSN: | 622 |
Total airframe hrs: | 1450 hours |
Engine model: | FRANKLIN 6VS-335-A |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Harrisburg, AR -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Unknown |
Departure airport: | Harrisburg, AR |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE PILOT SAID THAT WHILE FLYING AT LOW ALTITUDE OVER A PEACH ORCHARD TO PREVENT FROST DAMAGE, THE INSTRUMENT PANEL LIGHTS DIMMED. ALSO, HE REPORTED THAT WITH THE RESTRICTED INSTRUMENT VISIBILITY, THE HELICOPTER 'GOT BEHIND THE POWER CURVE' AND THE ROTOR RPM DECAYED. SUBSEQUENTLY, A RUN-ON LANDING WAS MADE, AND THE HELICOPTER WAS DAMAGED. A POST-ACCIDENT INVESTIGATION REVEALED THE GENERATOR HAD FAILED.
Probable Cause: FAILURE OF THE GENERATOR, AND FAILURE OF THE PILOT TO MAINTAIN ROTOR RPM.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | MKC90LA083 |
Status: | Investigation completed |
Duration: | 2 years and 10 months |
Download report: | Final report |
|
Sources:
NTSB MKC90LA083
Location
Revision history:
Date/time | Contributor | Updates |
22-Mar-2024 08:13 |
ASN Update Bot |
Added |
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